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PIR
PIR technology senses occupancy by detecting the difference between heat emitted from the human body in motion and the background space. Relying on a clear line of sight, PIR switches make 100% coverage cut-off possible. Ultrasonic detection works by transmitting ultrasonic sound waves throughout an area and measuring the speed at which they return. Occupant movement changes the frequency at which these sound waves return, resulting in a Doppler shift and occupancy detection. We invented and patented Dual Technology to combine the best of both PIR and ultrasonic technologies.
While PIR and ultrasonic sensors provide optimal control for many spaces, some applications pose difficulty for single technology products. Our Dual Technology sensors ensure maximum sensitivity and coverage in tough applications for optimal reliability and energy savings